| | | 1 | | namespace Pozitron.QuerySpecification; |
| | | 2 | | |
| | | 3 | | public static class PaginationExtensions |
| | | 4 | | { |
| | | 5 | | public static IQueryable<TResult> ApplyPaging<T, TResult>(this IQueryable<TResult> source, Specification<T, TResult> |
| | 15 | 6 | | => ApplyPaging(source, specification.Skip, specification.Take); |
| | | 7 | | public static IQueryable<T> ApplyPaging<T>(this IQueryable<T> source, Specification<T> specification) |
| | 24 | 8 | | => ApplyPaging(source, specification.Skip, specification.Take); |
| | | 9 | | public static IQueryable<T> ApplyPaging<T>(this IQueryable<T> source, Pagination pagination) |
| | 6 | 10 | | => ApplyPaging(source, pagination.Skip, pagination.Take); |
| | | 11 | | |
| | | 12 | | public static IEnumerable<TResult> ApplyPaging<T, TResult>(this IEnumerable<TResult> source, Specification<T, TResul |
| | 4 | 13 | | => ApplyPaging(source, specification.Skip, specification.Take); |
| | | 14 | | public static IEnumerable<T> ApplyPaging<T>(this IEnumerable<T> source, Specification<T> specification) |
| | 7 | 15 | | => ApplyPaging(source, specification.Skip, specification.Take); |
| | | 16 | | |
| | | 17 | | private static IQueryable<T> ApplyPaging<T>(this IQueryable<T> source, int skip, int take) |
| | | 18 | | { |
| | | 19 | | // If skip is 0, avoid adding to the IQueryable. It will generate more optimized SQL that way. |
| | 45 | 20 | | if (skip > 0) |
| | | 21 | | { |
| | 17 | 22 | | source = source.Skip(skip); |
| | | 23 | | } |
| | | 24 | | |
| | 45 | 25 | | if (take >= 0) |
| | | 26 | | { |
| | 18 | 27 | | source = source.Take(take); |
| | | 28 | | } |
| | | 29 | | |
| | 45 | 30 | | return source; |
| | | 31 | | } |
| | | 32 | | |
| | | 33 | | private static IEnumerable<T> ApplyPaging<T>(this IEnumerable<T> source, int skip, int take) |
| | | 34 | | { |
| | 11 | 35 | | if (skip > 0) |
| | | 36 | | { |
| | 8 | 37 | | source = source.Skip(skip); |
| | | 38 | | } |
| | | 39 | | |
| | 11 | 40 | | if (take >= 0) |
| | | 41 | | { |
| | 8 | 42 | | source = source.Take(take); |
| | | 43 | | } |
| | | 44 | | |
| | 11 | 45 | | return source; |
| | | 46 | | } |
| | | 47 | | } |